What domesticated animals did the Olmecs use?
The Olmec's were the first major civilization in Mexico. The domesticated animals they used was the dog, and it was a major source of protein for them.
The Olmecs gardened and hunted, but they also kept meat. The Olmecs grew lots of different vegetables like maize, beans, chilies, tomatoes and squashes. They kept chicken and dogs, they kept chicken and dogs for their meat. The Olmecs also hunted animals like canneries also called wild pigs and deer. The Olmecs hunted sea animals like turtles and alligators. They fished fish and gathered shell fish.
Nomadic tribes followed wild animals initially and later moved their domesticated herds in patterns that mimic the migratory habits of wild animals to insure that the animals had grazing year round. The advantage of domestication is that the animals are easier to catch, eat or exploit the use of their hair/fleece for clothing, shelter et cetera.